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LIVING COLLECTIONS POLICY U.S. NATIONAL ARBORETUM

The Living Collections of the USNA conserve plants and encourage their use for research, discovery, and education. The Living Collections also serve as an integral part of the collective botanical heritage of the public garden community. As a unique component of the USDA ARS National Plant Germplasm System (NPGS), the Living Collections are an international source of ornamental plant genetic resources.